The City of Everett's 1st sewers were constructed in 1890, 3 years before Everett was incorporated. In 1897, the construction of a citywide system began in north Everett. This north portion of the system is combined, carrying stormwater and sanitary sewage to Everett's wastewater treatment plant, called the Everett Water Pollution Control Facility (EWPCF). With population growth, the system expanded to the south. The south portion of the system is sanitary sewage only.

Comprehensive sewer plan

  1. 2014 Sewer comp plan volume 1 - sewer plan (PDF)
  2. 2014 Sewer comp plan volume 2 - appendices (PDF)
  3. 2014 Sewer comp plan volume 3 - basin plans (PDF)

Utilities annual financial reports

  1. Who our customers are
  2. How we clean wastewater
  3. Side service utility warranty

Everett's wastewater system serves about 165,000 people, conveying sewage through approximately 345 miles of sewer mains, interceptors, laterals, and 31 lift stations to the Everett Water Pollution Control Facility (EWPCF). 

In addition to the community of Everett, the EWPCF also treats a portion of the sewage from 3 neighboring sewer systems: Mukilteo Water and Wastewater District, Alderwood Water and Wastewater District, and Silver Lake Water and Sewer District. This system plays a vital role in protecting public health. It also protects rivers, lakes, and streams from pollutants and minimizes harmful impacts to the natural environment.

  1. Arrange a tour
  2. Biosolids
  3. Environmental lab
  4. Industrial pretreatment

Contact Operations at the Water Pollution Control Facility by calling 425-257-8220 to schedule a tour and/or receive additional tour information.